- Update section on how to change the kernel config
- Reword kernel module section. It was messy
- General tidying up:
- empty lines around quoted areas
- two empty line above and one empty line below section headings
- Limit line length.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This script is slightly modified from the ChromiumOS splitconfig
It takes a number of kernel config files and prints the common
on specific kernel config options to seperate files.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Note, vhost vsock is disabled on arm64 because it failed to compile.
'vhost_vq_init_access' was not defined, but with a quick check
I could not find where it was supposed to be defined.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
The new Dockerfile.kconfig can be used, via the 'kconfig' make target
to build a 'linuxkit/kconfig' images. This images contains the patched
source and default kernel configs for all supported kernels.
It's useful to updating the kernel config files.
While at it, also update the alpine base.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
The metadata package has binds
- /dev
- /var
- /sys
- /etc/resolv.conf
- /etc/ssl/certs
but unfortunately `/etc/ssl/certs` doesn't exist and this causes the
following commands:
cd blueprints/docker-for-mac # easy example
moby build -name docker-for-mac base.yml docker-17.06-ce.yml
linuxkit run hyperkit -networking=vpnkit -vsock-ports=2376 -disk size=500M docker-for-mac
to produce the following error on the VM console:
container_linux.go:265: starting container process caused "process_linux.go:348: container init caused \"rootfs_linux.go:57: mounting \\\"/etc/ssl/certs\\\" to rootfs \\\"/containers/onboot/000-metadata/rootfs\\\" at \\\"/etc/ssl/certs\\\" caused \\\"stat /etc/ssl/certs: no such file or directory\\\"\""
2017/08/21 16:39:40 Error creating 000-metadata: exit status 1
This patch creates /etc/ssl/certs in the `init` package. The metadata package
will now say things like
2017/08/21 16:44:39 No metadata/userdata found. Bye
Signed-off-by: David Scott <dave.scott@docker.com>
Currently they will be on a read only partition so broken;
previously this would have been a non persistent read write partition
in an initramfs but this no longer works.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
As discussed before, as we use this in three places, cloning in
base makes more sense.
Update base image.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
These are needed by Kubernetes which is currently not using the standard abse image.
Also sort it.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
The kernel build currently downloads the source tar ball every
time, which is a little tedious when experimenting with kernel
configs or when compiling the kernel multiple times.
This commit adds a new 'fetch' make target which downloads the
kernel sources into ./sources. Then in the Dockerfile we add
the directory and only download the source if it is not present.
The tarballs signature is till checked on each build.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Since we supply a full .config file we can check that after
make defconfig/oldconfig it hasn't changed. This should catch
cases where a config option has changed between releases.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
- use one shot dhcp
- add a one shot rngd as needs entropy
- add metadata
- remove ssh key from host as we have in metadata
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
Use the packet metadata to set up bonding, also get ssh keys and hostname.
This does not yet do anything with disk metadata.
Userdata is not used if it has been used for ipxe, but is otherwise available.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This is a recommended security measure to protect the low portion
of virtual memory. On x86_64 the recommended value is 65536 while
for arm it shouldn't be higher than 32768.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
The resulting kernel boots fine on qemu and on Cavium Thunder,
though the latter still has some issues.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
The local changes were merged, so switching back to the original
repository. A minor change in API was needed.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
